And the fifth angel sounded, and I saw a star fall from heaven unto the earth: and to him was given the key of the bottomless pit. And he opened the bottomless pit; and there arose a smoke out of the pit, as the smoke of a great furnace; and the sun and the air were darkened by reason of the smoke of the pit. And there came out of the smoke locusts upon the earth: and unto them was given power, as the scorpions of the earth have power. Revelation 9:1-3
Abyss or Bottomless pit
How art thou fallen from heaven, O Lucifer, son of the morning! how art thou cut down to the ground, which didst weaken the nations! For thou hast said in thine heart, I will ascend into heaven, I will exalt my throne above the stars of God: I will sit also upon the mount of the congregation, in the sides of the north: I will ascend above the heights of the clouds; I will be like the most High. Yet thou shalt be brought down to hell, to the sides of the pit. Isaiah 14:12-15
An they besought him that he would not command them to go out into the deep. And there was there an herd of many swine feeding on the mountain: and they besought him that he would suffer them to enter into them. And he suffered them. Then went devils out of the man, and entered into the swine: and the herd ran violently down a steep place into the lake, and were choked. Luke 8:31-33
For if God didn’t spare angels when they sinned, but cast them down to Tartarus, and committed them to pits of darkness to be reserved for judgment; 2 Peter 2:4
Angels who didn’t keep their first domain, but deserted their own dwelling place, he has kept in everlasting bonds under darkness for the judgment of the great day. Jude 1:6
The seventy returned with joy, saying, “Lord, even the demons are subject to us in your name!” He said to them, “I saw Satan having fallen like lightning from heaven. Behold, I give you authority to tread on serpents and scorpions, and over all the power of the enemy. Nothing will in any way hurt you. Nevertheless, don’t rejoice in this, that the spirits are subject to you, but rejoice that your names are written in heaven.” Luke 10:17-20
These signs will accompany those who believe: in my name they will cast out demons; they will speak with new languages; they will take up serpents; and if they drink any deadly thing, it will in no way hurt them; they will lay hands on the sick, and they will recover.” Mark 16:17,18
…then your heart might be lifted up, and you forget Yahweh your God, who brought you out of the land of Egypt, out of the house of bondage; who led you through the great and terrible wilderness, with venomous snakes and scorpions, and thirsty ground where there was no water; who poured water for you out of the rock of flint; Deuteronomy 8:14,15
Satan's prison
I saw an angel coming down out of heaven, having the key of the abyss and a great chain in his hand. He seized the dragon, the old serpent, which is the devil and Satan, who deceives the whole inhabited earth, and bound him for a thousand years, and cast him into the abyss, and shut it, and sealed it over him, that he should deceive the nations no more, until the thousand years were finished. After this, he must be freed for a short time. Revelation 20:1-3
And after the thousand years, Satan will be released from his prison, Revelation 20:7